A punch fine adjustment part

The invention provides a punch fine adjustment part comprising a screw, a screw handle provided with pin holes inside, an upper bolt, a lower bolt, a punch and a stop block. The screw handle is arranged at one end of the screw; the upper bolt and the lower bolt penetrate the pin holes of the screw handle to fixedly connect the screw handle and the screw; the other end of the screw is in contact fixation with the punch; the contact surfaces of the screw and the punch are inclined surfaces; the stop block is arranged on one side of the punch; the stop block comprises a fixed part, a moving part and a spring, wherein the fixed part is fixed to an external apparatus, the moving part is connected with the fixed part via a spring and the moving part is in close contact with the punch. The punch fine adjustment part enables the screw to generate displacement through the tightness adjustment of the upper bolt and the lower bolt and further control fine adjustment of the punch, thereby greatly improving a punching eff